I'm working with a group that has customized their mediawiki installation so that they can create multiple wiki instances, each with their own database, that have no knowledge of each others existence. This was done for security and privacy reasons.
They now would like to be able to search a number of these multiple wiki instances from within one newly defined wiki. I'm thinking the method they are attempting may be as simple as creating a wiki home page with links to each of the wikis they would like to search.
Is this possible? Is the wiki search driven by a crawler that would follow the links on that new wiki home page? If not, is there an approach I could follow to be able to provide search capability against a select number of these individual wikis under one umbrella?
Thanks for any suggestions!